Jelle is right, multiple (delete mingetty-service-type) is not useful. With more thought, what I imagined as more explicit is probably more like (delete "term-tty2") than (delete mingetty-service-type). Also I wouldn’t actually need it.
And as Brian says, just use filter. modify-services need not do more than what is already documented. I would be happy if someone else would undo the change to “delete at most once”. Regards, Florian
